Seam for woven-wire belts and method of making it



June 11, 1929.

H. LINDSAY SEAM FOR WOVEN WIRE BELTS AND METHOD OF MAKING IT Filed Sept. 4, 1928 Zjwwmtox atkwmqd Patented June 11, 1929.

tlhilTE SlATES 1,?15,860 PATENT ()FFICE.

HAMILTON LINDSAY, OF CLEVELAND, OHIO, ASSIGNOR T LINDSAY WIRE WEAVING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

SEAM FOR V QVEN-VJ'IRE BELTS AND METHODOF MAI{ING.IT.

Application filed. September This invention relates to seains for woven wire belts, particularly those which are adapted for use in connection with the operation of Fourdrinier paper making machines. Usually seams for belts of this character have a stitching forming wire which passes over one or more weft wires to reinforce the ends of the belt, while a closing wire is used for joining the ends of the belt. In most of these seams, either the closing or stitching wire projects slightly beyond the ends or knuckles of the warp wires and are subjected to wear prematurely thus causing fracture of the belt at the seam.

The present invention is directed toward the construction of a seam which does not require the seam forming wires to extend over any of the Weft wires. This prevents undue wear of the seam wires until the body of the fabric is worn to an appreciable extent. Thus, the seam, which is the weakest part of the belt, is protected against premature wear, and accordingly the life of the belt may be extended. In this connection, this invention is directed toward the provision of a scam which may be readily made and which, when completely formed, will have sufiicient strength to effect a strong oint without lilling the interstices to an exte t that would render it ditlicult for water to pass through the seam when the bolt is .in use.

I carry out my invention by joining together toe ends of adjacent warp wires on each end of the belt so as to form loops, and by threading one or more closing wires through the loops. Thus, the closing wire or wires do not extend over or around any of the weft wires, and hence the plane of the outer surface of the closing wire is inside the plane of the outer surface of the belt.

In the drawings, l is a plan view of part of a wire bclt embodying my invention, and Fig. 2 is a section taken through. the belt on a plane indicated by the line 2-2 in l.

Tnthe drawings, I have indicated warp wires at and weft wires at 11, which in the fabric illustrated are arranged in the form of a standard weave. After the fabric is woven, the desired length is cut from the roll, whereupon one weft wire adjacent each end of the strip is removed. This allows the warp wires to project as at 10 on one end and at 10 on the opposite end.

The projecting ends of the warp wires on the respective ends of the fabric are then joined together, preferably by a brazing operation to form loops 10 at one end, and at 1O at the opposite end. coinplished by fastening together the ends of the adjacent warp wires as is illustrated in Fig. l.

To join the ends of the fabric, a scamforn'iing wire 15 extends through a loop 10, across and diagonally through a loop 10 and then back through another loop 10", and so on. This closing wircpasscs through alternate loops on each end of the belt. Another closing wire 16 extends through the remaining loops and diagonally across the fabric as is shown in Fig. 1. Thus, each closing or seam-forming wire passes across the seam opening and through alternate loops on each end of the belt.

The seam construction which I have shown and described is the preferred arrangement for joining together the ends of the belt. In such arrangement the seam-forming wires as shown in Fig. 2 are above the plane of the bottom surface of the fabric. Thus, the body of the fabric will wear before the seam wires and this result is obtained principally be cause of the fact that the seam-forming wires do not cross any of the weft wires adjacent either end of the belt. A furtheradvantage of this construction is the fact that the seam opening is not clogged to an objectionable degrce, and yet the construction has suff cient strength to prevent parting of the wires when the belt is in use.

I claim:

1. The method of making a scam for a woven wire belt, comprising fastening adjacent warp wires together independently of the weft wires to form loops at each end of the belt, and then passing a closing wire across the seam opening and thru the loops.

2. A method of making a seam for a. warp wire belt, comprising joining together the ends of adjacent warp wires beyond the last weft wire and at each end of the beltto form loops, and then passing a closing wire across the seam opening and through the loops.

3. A woven wire belt having warp wires and weft wires, the warp wires being joined together in groups independently of the weft wires to form loops at each end of the belt, and means extending through the loops and across the seam opening for connecting the ends of the belt.

4. A wire belt having the ends of groups This may be acof adjacent warp wires connected directly together independently of the weft wires to form spaced loops, said belt having a sea-n1- torining wire threaded through some of the loops on each end of the belt.

5. A woven wire belt having warp wires and weft wires, the warp wires being joined together in pairs beyond the end of the weft wire at each end of the belt so as to form loops, there being a seain-tforn'iing wire passing across the seam opening and threaded through alternate loops on each end of the belt.

6. A woven wire belt having warp wires and weft wires, the adjacent warp wires being joined together in pairs to form loops,

taere being two sean'i-forining wires extend ingacross the seam opening and passing through the loops on the respective ends of the belt, each seam-forming wire passing through alternate loops.

7. A woven wire belt having warp wires and weft wires, means for joining togetherth e ends of the warp wires independently of the weft wires at each end of the belt so as to form loops, and means extending through the loops and across the seam opening for connecting the ends of the belt.

In testimony whereof, I hereunto allix my signature.

HAMILTON LINDSAY. 

